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Agent skill

Contribute Catalog

by boraoztunc in boraoztunc/skills

Author a new HyperFrames registry block (caption style, VFX block, transition, lower third) or component (text effect, overlay, snippet) and ship it as an upstream PR to the hyperframes repo.

Apache-2.0Auto-check passedMedia & Creative

Install Contribute Catalog

skills CLI
$ npx skills add boraoztunc/skills --skill contribute-catalog -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install boraoztunc/skills contribute-catalog --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/boraoztunc/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/contribute-catalog .claude/skills/contribute-catalog && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
contribute-catalog
GitHub stars
398
Used in
2 other repos
Token cost
~1.8k tokens
SKILL.md length
513 words
Files
2
Skills in repo
52
Repo updated
First seen
Licence
Apache-2.0

At a glance

Author a new HyperFrames registry block (caption style, VFX block, transition, lower third) or component (text effect, overlay, snippet) and ship it as an upstream PR to the hyperframes repo.

  • Works in 6 steps: Clarify → Scaffold → Build → …
  • Wants to CONTRIBUTE to the public catalog — for in-project caption/transition authoring use the hyperframes skill
  • SKILL.md covers Workflow and Quality Gate
  • Calls npx, git and gh; reaches hyperframes.heygen.com

What it does

Contribute Catalog is an agent skill from boraoztunc/skills. Author a new HyperFrames registry block (caption style, VFX block, transition, lower third) or component (text effect, overlay, snippet) and ship it as an upstream PR to the hyperframes repo. Use ONLY when the user wants to CONTRIBUTE to the public catalog — for in-project caption/transition authoring use the hyperframes skill, for installing existing registry items use the hyperframes-registry skill.

Its SKILL.md is about 1.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `templates.md`).

It sits in Media & Creative, covering Motion graphics. It works with HeyGen. The repository describes itself as: Claude Code skills for copywriting, SEO, design, and more. The licence is Apache-2.0.

When your agent uses it

  • Wants to CONTRIBUTE to the public catalog — for in-project caption/transition authoring use the hyperframes skill
  • For installing existing registry items use the hyperframes-registry skill

Example prompts

  • “/contribute-catalog”

Requirements

  • Node.js

Workflow steps

6 steps, taken from the step headings in SKILL.md.

  1. Clarify
  2. Scaffold
  3. Build
  4. Validate
  5. Preview
  6. Ship

What it can do on your machine

Read from SKILL.md and the folder at commit 645553c. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • npx
    • git
    • gh

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • hyperframes.heygen.com

    Also links to:

    • github.com

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Contribute Catalog loads about 1.8k tokens when it runs. Until then it costs about 107 tokens; SKILL.md has 513 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~107
When it runs · the whole SKILL.md, loaded when a task matches
~1.8k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from boraoztunc/skills at commit 645553c, republished under its Apache-2.0 licence (© boraoztunc). 513 words, ~1,803 tokens.

Download SKILL.mdSave it as .claude/skills/contribute-catalog/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
contribute-catalog
description
Author a new HyperFrames registry block (caption style, VFX block, transition, lower third) or component (text effect, overlay, snippet) and ship it as an upstream PR to the hyperframes repo. Use ONLY when the user wants to CONTRIBUTE to the public catalog — for in-project caption/transition authoring use the `hyperframes` skill, for installing existing registry items use the `hyperframes-registry` skill.

Contribute to HyperFrames Registry

Guide the user from idea to merged PR for a new registry block or component.

Workflow

1. Clarify → 2. Scaffold → 3. Build → 4. Validate → 5. Preview → 6. Ship
Step 1: Clarify

Ask what they're building. The registry has two item types:

  • Block (registry/blocks/, type hyperframes:block) — a full standalone composition with fixed dimensions and duration. Caption styles, VFX effects, title cards, lower thirds.
  • Component (registry/components/, type hyperframes:component) — a reusable snippet with no fixed dimensions or duration. CSS effects, text treatments, overlays that adapt to any composition size.

Then ask:

  • One-sentence description of the effect
  • Visual reference (URL, screenshot, or description)
  • Who uses this and when?
Step 2: Scaffold

Create the registry structure:

For blocks:

registry/blocks/{block-name}/
  {block-name}.html
  registry-item.json

For components:

registry/components/{component-name}/
  {component-name}.html
  registry-item.json

Naming convention:

Item nameID prefixExample IDs
cap-hormozihzhz-cg-0, hz-cw-3
cap-typewritertwtw-cg-0, tw-ch-0-5
vfx-chromevcvc-canvas

Use a 2-3 letter prefix. ALL element IDs must use this prefix to avoid collisions in sub-compositions.

registry-item.json for blocks:

json
{
  "$schema": "https://hyperframes.heygen.com/schema/registry-item.json",
  "name": "{block-name}",
  "type": "hyperframes:block",
  "title": "{Human Title}",
  "description": "{one sentence}",
  "dimensions": { "width": 1920, "height": 1080 }, // adjust: 1080x1920 for portrait/social
  "duration": 10, // adjust for your composition
  "tags": ["{category}", "{subcategory}"],
  "files": [
    {
      "path": "{block-name}.html",
      "target": "compositions/{block-name}.html",
      "type": "hyperframes:composition"
    }
  ]
}

registry-item.json for components (no dimensions or duration):

json
{
  "$schema": "https://hyperframes.heygen.com/schema/registry-item.json",
  "name": "{component-name}",
  "type": "hyperframes:component",
  "title": "{Human Title}",
  "description": "{one sentence}",
  "tags": ["{category}"],
  "files": [
    {
      "path": "{component-name}.html",
      "target": "compositions/components/{component-name}.html",
      "type": "hyperframes:snippet"
    }
  ]
}
Step 3: Build

Apply the correct template based on type. See templates.md for copy-paste starters.

Caption blocks

Non-negotiable caption rules:

  • Font: 96px minimum for proportional fonts. 64-72px acceptable for monospace (wider characters need less size).
  • Readability: -webkit-text-stroke: 2-3px OR multi-layer text-shadow
  • Overflow: call window.__hyperframes.fitTextFontSize() on every group
  • Karaoke: highlight active word via tl.to(wordEl, { color/scale }, WORDS[wi].start)
  • Hard kill: tl.set(groupEl, { opacity: 0, visibility: "hidden" }, g.end) on EVERY group
  • Never use tl.from(el, { opacity: 0 }) at the same position as tl.set(el, { opacity: 1 }) — the from clobbers the set. Use tl.to instead.

Per-character animation (typewriter, scramble):

  • Wrap each character in <span> with ID {prefix}-ch-{group}-{char}
  • Stagger via tl.set at computed intervals from word timestamps
  • Cursors/decorative elements: use tl.set at intervals — NOT CSS animation (not seekable)

Positioning variants:

  • Centered: display: flex; align-items: center; justify-content: center;
  • Lower-third: position: absolute; bottom: 100px; left: 0; width: 100%; text-align: center;
  • Left-aligned: position: absolute; bottom: 100px; left: 120px; text-align: left;
Show full SKILL.md (212 more words)Show less
VFX blocks (Three.js)
  • Use three@0.147.0 from CDN (global script)
  • tl.eventCallback("onUpdate", renderScene); renderScene(); — NO requestAnimationFrame
  • State proxy pattern: GSAP animates plain JS object, render function reads it
  • Seeded PRNG (mulberry32) for randomness
All types
  • data-composition-id MUST match window.__timelines["id"]
  • All element IDs prefixed with block abbreviation
  • gsap.timeline({ paused: true }) — always paused
  • No Math.random(), no Date.now()
Step 4: Validate
bash
hyperframes lint                    # 0 errors required
hyperframes validate --no-contrast  # 0 console errors required
Step 5: Preview
bash
# Render preview video
hyperframes render -o preview.mp4

# Snapshot for visual QA
hyperframes snapshot --at "1.0,3.0,5.0,7.0"

# Publish to hyperframes.dev for review
npx hyperframes publish

Catalog preview image — The catalog card uses a PNG at docs/images/catalog/{kind}/{name}.png (where {kind} is blocks or components). Generate it from a snapshot, then:

  • HeyGen internal contributors: run scripts/upload-docs-images.sh (requires AWS profile engineering-767398024897)
  • External contributors: attach the preview MP4 to your PR description. A maintainer will generate and upload the catalog image before merging.
Step 6: Ship

All steps are required. Missing any one produces a broken catalog entry.

{kind} is blocks or components depending on what you built in Step 1.

bash
# 1. Create branch
git checkout -b feat/registry-{name}

# 2. Format HTML
npx oxfmt registry/{kind}/{name}/*.html

# 3. Update registry/registry.json — add entry to the "items" array:
#    { "name": "{name}", "type": "hyperframes:block" }  (or "hyperframes:component")

# 4. Generate catalog docs page
npx tsx scripts/generate-catalog-pages.ts

# 5. Publish to hyperframes.dev so reviewers can preview
npx hyperframes publish

# 6. Stage everything
git add registry/{kind}/{name}/ registry/registry.json docs/catalog/

# 7. Commit
git commit -m "feat(registry): add {name} — {one sentence}"

# 8. Push and open PR with hyperframes.dev link
git push origin feat/registry-{name}
gh pr create --title "feat(registry): {name}" --body "preview: {hyperframes.dev-url}"

If you don't have a GitHub account: you need one to open a PR. Sign up at https://github.com/signup, then run gh auth login.

Quality Gate

  • hyperframes lint → 0 errors
  • hyperframes validate → 0 console errors
  • npx oxfmt --check passes
  • registry/registry.json updated with new entry
  • scripts/generate-catalog-pages.ts run (docs page generated)
  • npx hyperframes publish run (claim your project URL)
  • Preview MP4 attached to PR (external) or catalog PNG uploaded (internal)
  • All IDs unique and prefixed

© boraoztunc, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in contribute-catalog of boraoztunc/skills.

  • SKILL.md
  • templates.md

Open the folder on GitHubat commit 645553c

Used in 2 other repositories

We found 3 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 2 other GitHub owners. This page covers the copy in boraoztunc/skills, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Contribute Catalog next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Contribute Catalog compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Contribute Catalog this skillboraoztunc/skills3982 repos~1.8kAutomated safety check: PassApache-2.0
HyperFrames Animationheygen-com/hyperframes60k3 repos~2.1kAutomated safety check: PassApache-2.0
Faceless Explainer Videoheygen-com/hyperframes60k3 repos~7.7kAutomated safety check: NotesApache-2.0
Figma to HyperFramesheygen-com/hyperframes60k3 repos~4.5kAutomated safety check: NotesApache-2.0
HyperFrames Video Entry Pointheygen-com/hyperframes60k3 repos~5.2kAutomated safety check: PassApache-2.0
Media Useedenfunf/reelmimic1.9k1 repos~2kAutomated safety check: PassMIT

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Works with

Categories

Questions about Contribute Catalog

What does Contribute Catalog do?

Author a new HyperFrames registry block (caption style, VFX block, transition, lower third) or component (text effect, overlay, snippet) and ship it as an upstream PR to the hyperframes repo. Contribute Catalog is an agent skill from boraoztunc/skills. Author a new HyperFrames registry block (caption style, VFX block, transition, lower third) or component (text effect, overlay, snippet) and ship it as an upstream PR to the hyperframes repo.

When should I use Contribute Catalog?

Contribute Catalog fits situations like: wants to CONTRIBUTE to the public catalog — for in-project caption/transition authoring use the hyperframes skill; for installing existing registry items use the hyperframes-registry skill.

How do I install Contribute Catalog in Claude Code?

Run `npx skills add boraoztunc/skills --skill contribute-catalog -a claude-code`. Or copy the skill folder (contribute-catalog in boraoztunc/skills) into .claude/skills/contribute-catalog in your project. Claude Code loads it when a task matches its description.

How do I install Contribute Catalog in Codex?

Run `npx skills add boraoztunc/skills --skill contribute-catalog -a codex`. Or copy the skill folder (contribute-catalog in boraoztunc/skills) into .agents/skills/contribute-catalog in your project. Codex loads it when a task matches its description.

Can I use Contribute Catalog in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add boraoztunc/skills --skill contribute-catalog -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/contribute-catalog, .gemini/skills/contribute-catalog, .github/skills/contribute-catalog and .opencode/skills/contribute-catalog in your project.

What does Contribute Catalog need to run?

Going by SKILL.md and its folder, Contribute Catalog needs the command-line tools its instructions call (npx, git and gh). Our summary lists: Node.js.

Does Contribute Catalog access the network?

SKILL.md names 2 domains. In commands or code: hyperframes.heygen.com; the agent is likely to contact it when it follows the instructions. As links in the text: github.com. This is read from the text; nothing was executed.

Is Contribute Catalog safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Contribute Catalog use?

Contribute Catalog is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Contribute Catalog use?

About 1.8k tokens (SKILL.md is roughly 7.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Contribute Catalog?

Skills that share tags, products or a category with Contribute Catalog: HyperFrames Animation (heygen-com/hyperframes, 60k stars), Faceless Explainer Video (heygen-com/hyperframes, 60k stars), Figma to HyperFrames (heygen-com/hyperframes, 60k stars) and HyperFrames Video Entry Point (heygen-com/hyperframes, 60k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Contribute Catalog?

boraoztunc (a GitHub user) maintains it in boraoztunc/skills, which has 398 GitHub stars. The repository holds 52 skills in this directory. The repository was last updated on August 15, 2026.

Source: boraoztunc/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.